CSUN Loc. 479 (Eocene of the United States)

Where: Ventura County, California (34.3° N, 118.7° W: paleocoordinates 35.0° N, 104.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Llajas Formation, Lutetian (47.8 - 41.3 Ma)

• "Stewart Bed"

• bed-level stratigraphic resolution

Environment/lithology: offshore; sandstone

• Shallow-marine (transgressive) facies

Size class: macrofossils

Preservation: mold/impression

Reposited in the LACM

• Collected by R.L. Squires, (1978)

Primary reference: R. L. Squires. 1984. Megapaleontology of the Eocene Llajas Formation, Simi Valley, California. Contributions in Science, Natural History Museum of Los Angeles County 350:1-76 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 201259: authorized by Jonathan Marcot, entered by Jonathan Marcot on 02.05.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Malleidae
"Nayadina (Exputens) llajasensis" = Exputens llajasensis
"Nayadina (Exputens) llajasensis" = Exputens llajasensis Clark 1934 oyster
 Cardiida - Cardiidae
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle
Gastropoda
 Architaenioglossa - Ampullinidae
Eocernina hannibali Dickerson 1914 snail
Pachycrommium clarki Stewart 1927 snail
 Neogastropoda - Turridae
Surculites mathewsonii Gabb 1864 turrid
 Ficoidea - Ficidae
Ficopsis remondii Gabb 1864 fig shell
as Ficopsis remondii crescentensis
 Xenophoroidea - Xenophoridae
Xenophora stocki Dickerson 1916 carrier shell
Anthozoa
 Scleractinia - Montlivaltiidae
"? Trochocyathus striatus" = Trochosmilia striata
"? Trochocyathus striatus" = Trochosmilia striata Gabb 1864 stony coral
Orthophragmina
  -
"Pseudophragmina (Proporocyclina) clarki" = Orthophragmina clarki
"Pseudophragmina (Proporocyclina) clarki" = Orthophragmina clarki Cushman 1920